Synopsis

Description

The remote VMware ESXi 5.1 host is prior to build 3070626. It is, therefore, affected by a guest privilege escalation vulnerability in the Shared Folders (HGFS) feature due to improper validation of user-supplied input. A local attacker can exploit this to corrupt memory, resulting in an elevation of privileges.

Solution

Apply patch ESXi510-201510102-SG according to the vendor advisory.Note that VMware Tools in any Windows-based guests that use the Shared Folders (HGFS) feature must also be updated to completely mitigate the vulnerability.